Couple of small bugs, when in the Playlist screen, the navigation button does not work, and in navigation, the Full Screen buttons does not work. It brings up the button in the top right to exit FS, but the screen itself remains the same.

Have a look at my skin where you got the EXIT_FS.exe. You can see on the button code for Full Screen (in the External_Gps.skin), how I call a totally empty skin and embed iGuidance in it, then the EXIT_FS.exe is fired so there is a way to go back a screen. The EXIT_FS.exe itself does not make iG go Fullscreen, it just acts as an overlay, that when pressed sends RR the ESC command to go back to the previous screen.